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Concentrated bass  this compact cube will amaze you

Definitive's Technology's SuperCube 4000 subwoofer proves that powerful bass doesn't require a big box. The tried-and-true SuperCube formula features an active woofer and two same-sized passive radiators, all driven by a brawny 1,200-watt amplifier. This sub will fill your room with sound while taking up less than a cubic foot of space.

Rock-solid bass requires rock-solid construction

The SuperCube 4000 sub uses a new class of high-efficiency amplifier to bring 1,200 watts to bear. Its clean muscle is preceded by a 56-bit DSP pre-amp stage that kills distortion before it ever reaches the amp, let alone your ears. The SuperCube's 8" woofer is pressure-coupled to two 8" passive radiators. This driver array gives the 4000 the capability for far greater speed, musicality, and control than the typical large single-woofer sub. The ultra-stiff woofer is encased in an incredibly rigid basket engineered to hold the massive magnet structure and large voice coil in absolute alignment. The non-resonant front and back panels are nearly 2" thick and use multiple internal bracings to make sure that you hear clean bass without sound-muddying vibrations.

Flexible inputs and advanced controls

Line-level and speaker-level inputs let you connect this sub to just about any audio system. The continuously variable low-pass crossover allows you to precisely control the frequencies that your subwoofer handles. And the disappearing display lets you monitor the 4000's settings while you adjust them with the included wireless remote.

Why add a powered subwoofer?

A powered subwoofer gives you bass you can feel as well as hear. Our customers love the depth and impact their subs add to music and movies. We hear comments like "it brings out sounds I didn't know existed in discs I've watched a million times." Powered subwoofers aren't just for big bass that rattles your picture frames; they can also deliver tight, accurate lows. If you haven't shopped for a powered sub in a while, you might be surprised at how small they get. Look for an ultra-compact model if you want to tuck your sub away under an end table or in a corner.

Product Research

Features

Definitive Technology SuperCube Powered Sub: The Definitive Technology SuperCube 4000 is a
compact, high-quality powered subwoofer intended for use in a music or home
theater system. The SuperCube 4000 powered subwoofer allows for easy, seamless
integration into almost any two-channel or multichannel speaker system;
delivering true, accurate, & extremely deep bass in any room. The Definitive Technology SuperCube
4000 features a 1200-watt digital amplifier, 56-bit DSP, 8" woofer with dual
8" passive radiators, & an included wireless remote control. The SuperCube 4000 is finished in a piano-gloss black lacquer finish with a black
non-removable cloth grille.

1200W
Digital Tracking Amplifier: The Definitive Technology SuperCube 4000
features a 1200-watt (RMS) digital tracking amplifier that is optimized for real
world power demands to deliver low distortion & high output. As well as
producing high continuous power to cleanly reproduce sustained bass (down to 16
Hz), this all-new Definitive Technology digital amp has a high crest factor to
deliver considerably higher power during short, transient peaks such as bass
drum kicks & on-screen artillery blasts. You'll enjoy high volume, high impact,
& low distortion bass from your favorite action/adventure films & TV shows
without sacrificing the smooth response & quick precision needed for music.

Note: As well
as being powerful, the new Definitive Technology digital amp is
environment-friendly. The amplifier goes into idle mode after less than 30
minutes of no audio signal. When in idle mode the amp draws a mere 1/2 Watt
or less of current, meeting international standards for low energy
consumption.

56-Bit Digital Signal Processor (DSP):
The
Definitive Technology SuperCube 4000 has an integrated 56-bit Digital Signal
Processor (DSP) that extends & improves the bass response. Multiband digital
protection systems tightly monitor & control the woofer system to prevent
distortion & woofer damage at ultra-high volume levels with a minimum of audible
artifacts. In contrast to simpler one-band compression/limiting circuits used in
competing subwoofer amp designs, the Definitive Technology SuperCube 4000
features a Multiband Dynamic Range Optimizer (M-DRO) that divides the frequency
range into multiple bands. If the DSP detects an overdrive condition in the
upper bass range, it applies just the right amount of compression & to prevent
distortion to just that range without compressing the low bass, thereby vastly
reducing the audible compression artifacts. As a result, the SuperCube 4000's
bass is always tight, highly detailed, & distortion free.

High
Definition Drivers: The powerful, high-definition drivers used in the new
SuperCubes were specifically engineered for their task: to deliver rock-solid
low distortion bass, reaching down to the lowest frequencies (16-200Hz), with an
outstanding quality of superior transient response ("tightness"). The special
ultra-stiff cones are joined to specially formulated surrounds & long-throw
voice coils & spiders. The incredibly rigid cast aluminum baskets are engineered
to hold the massive magnet structures & large voice coils in absolute alignment.
The high temperature voice coils are made of aluminum wound with triple
insulated ultra-pure copper wire & baked in epoxy for superior power handling &
reliability.

Passive Radiator Design: The SuperCube 4000 features an 8" subwoofer
driver pressure coupled to two 8" Ultra Low Bass Radiators. The total piston
area is greater than a 12-inch diameter woofer but with far greater speed,
musicality, & control than a single large diameter woofer could ever deliver.

Non-Resonant Cabinet: The
cabinet of a loudspeaker plays a large part in its sonic performance. Resonance
& vibration can add unwanted distortion as well as drain away important
acoustical energy from the system. Definitive's subwoofer enclosures have been
specifically engineered to be totally inert & vibration free, to ensure you of
absolutely pure sonic reproduction. The front and rear panels are nearly 2"
thick & the cabinet incorporates multiple internal braces to ensure total
solidity. The SuperCube 4000 is finished in piano-gloss black lacquer finish.

Interchangeable Feet: The SuperCube 4000 comes with 4 rubber-feet
& 4 spiked-feet for safe & secure placement of the powered subwoofer on
your carpet or hardwood floors. The spiked feet add approximately 0.125" of height to the
powered subwoofer.

Placement: There are some general guidelines that you should use when
locating the powered subwoofer.

For best results, place the subwoofer on the same side of the room as
your front speakers.

For maximum output, the subwoofer should be placed in a corner or
against the wall, leaving approximately 2" to 4" clearance between the
powered subwoofer and the wall(s).

Corner placement will increase the powered subwoofer's output.

An acoustic effect called "standing waves" or "room modes" may cause
uneven bass at various locations throughout the room. This phenomenon is a
function of the dimensions of the room and not due to the design of the
powered subwoofer.

Protection Circuit:To prevent accidental damage to the subwoofer from
overdriving the system, the SuperCube 4000 features an internal overload
protection circuit, which will turn the subwoofer off or down when overdriven or
overheated & will then resume normal operation after a few minutes.

Controls

Subwoofer Controls: A complete array of controls allow the
SuperCube 4000 to be perfectly integrated with any stereo or multi-channel audio
system, and tuned for optimum performance in any room.

Note: The remote operates off of a single 3V lithium battery
(CR2025).

Volume Control: The SuperCube 4000 features a rear-mounted
push-button
volume control (0-40). This control is used to raise or lower the output level of the
subwoofer in relation to the other speaker in your system.

Note: There is also a mute button on the remote control to zero
the volume level quickly.

Variable Low-Pass Crossover: The Definitive Technology
powered subwoofer features a continuous variable low-pass filter control on the
back-panel. This filter is continuously variable between 40 and 150 Hz. It
"rolls-off" (24dB/oct) the high-frequency response of your subwoofer so only
low-frequencies below the desired setting will be heard. This low-pass filter
control is used to obtain the optimum transition between the subwoofer and your
main speakers.

Variable Phase Alignment: The powered subwoofer features a
rear-panel push-button phase control (0/90/180/270-degrees). This
control is used to perfectly blend the output of your subwoofer with your main
speakers to compensate for any possible problems due to placement constraints.

EQ3: Raises the level of mid- & ultra-low bass frequencies (a
great setting for movies when not played at ultra-high volume levels).

EQ4: The best setting to use when achieving maximum volume levels
with minimal distortion is more important than reproducing the lowest
frequencies.

Night Mode: Night Mode applies dynamic range compression to the woofer
so that the loudest bass in a movie doesn't get loud enough to wake the parents,
kids, or spouse at night.

Auto Turn-On Circuit: The powered subwoofer has a special
power circuit which automatically turns the powered subwoofer on when a signal
is fed to the loudspeaker and turns it off when there is no signal present, so
it does not require an on-off switch.

LED Indicator: The red LED on the back panel of the powered
subwoofer will light up when a signal is sensed and the amplifier turns on. It
will automatically turn off with the powered subwoofer, a little while after the
signal is discontinued.

Connections

Line-Level & Speaker Level Connections: The Definitive
Technology SuperCube 4000 powered subwoofer has a complete range of inputs &
outputs to allow easy and effective hookup to any system. Both (high) speaker
level & low-level inputs are provided in case you do not have a subwoofer
output. In addition, the SuperCube 4000 has a separate direct-in LFE low-level
input (which bypasses the crossover network).

LFE Input: The LFE input on the SuperCube 4000 is a mono-RCA
input which is not affected by the subwoofer's low-pass filter or low-pass
crossover control. It is designed to connect the SuperCube 4000 to a receiver
which features a dedicated subwoofer output which features its own low-pass
crossover filter.

Low-Level Inputs: If your receiver does not feature a
dedicated subwoofer output, but does feature stereo RCA outputs, you can use the
SuperCube 4000's stereo RCA low-level inputs (which provide its own dedicated
variable low-pass crossover circuit) to connect the subwoofer to your receiver,

Speaker Level In: The Speaker Level inputs (5-way binding posts)
are designed to be used on receivers or amplifiers that do not incorporate any
RCA type subwoofer outputs. If your receiver is equipped with an RCA type
subwoofer outputs, these speaker level inputs should not be utilized.

Detachable AC Power Cord: The SuperCube 4000 includes a detachable 7'
AC power cord. The SuperCube 4000 must be plugged into a 120V, 60Hz electrical
socket (use an unswitched outlet if possible).

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team. They verify what’s in the box, check the owner's manual, and record
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Great Little Sub

This little subwoofer is awesome. Puts out rather impressive bass for only an 8" driver. Rattled a picture frame right off my wall! Sub does tend to distort if it's turned up too loud, however I've not really found this to be a problem. Blends very well with music and is a great addition for movie watching and gaming.

Def Tech 4K

This is an amazing little sub. I bought it mostly for a mini system I have going on my kitchen table with definitive technologies desk top/ computer speakers. this is an awesome combo., the sub so far has spent most of its time on my big system- 5.1 (now 5.2 surround with all Klipch speakers and a paradigm sub. The sub musically is near perfect in my opinion for my home in my living room, tight, precise sound and able to capture deep full movie effects as well as a large variety of music types- I love classical at low volumes where the sub really draws out the full richness of the bass instruments. I also love space/ ambient music and am learning to enjoy more and more some of the different modern music mixed with rich bass tones (mostly synth. or bass guitar). This can be anything from Enigma, The Gorillaz or even some hip hop, or techno dance music. I know it is not the perfect sub for big movie effects (not earth shattering by any means), but powerful and adequate. BTW- the folks at Crutchfield and Def Tech, cust. serv. were awesome.

Pros:Compact, will fit anywhere. Musically responsive, great for mini systems or as an add on to a full surround. I like the different EQ effects, and the remote is a lot of fun to puts around with as I listen.

Cons:The only thing I have found so far that I am not fond of (for this reason 4 stars) is that a low volumes the sub seems to quick to time out and turn itself off even though it is getting some signal. This problem has been solved on my Yamaha surround receiver by plugging into the 12V port.

Somewhat impressed

The Supercube 4000 comes packaged very nice and has an awesome appearance. The stereo that I am using to push it is a Sony STRDA1800ES using an Audio Quest Black Lab Coax. The woofer has very nice rolling bass. It also has good hard hitting bass. One of the things that I noticed is that it distorts when you turn the volume on the up to about 23 and turn the volume up on the stereo. When I turned the volume on the speaker down to about 20, it does not distort. Other that that it is a good sounding woofer. Just wish it were a little cheaper

Very Cool so Far!

I splurged on this subwoofer, but I am glad I have. I was planning on purchasing a sub that was on sale at $399, but it was twice size of this one. I am realing enjoying this so far because it sound awesome, looks great, fits in a small place and it comes with a remote so you can adjust it to your liking. I have paired it with a new Yamaha Home Theatre Receiver RX-A2020 and it makes this sound even better! I high recemmend this for anyone wanting a great sub, but worried about the size.

Pros:-Sounds great!
-Easy to use
-Remote is great to make many adjustments
-looks greats

Little with a BIG punch

This little dynamo is very deceiving. It is so small and has big base. I have a really big Velodyne sub, that is the size of a large end table. I'm not comparing the two because the Velodyne with a 15" speaker can relocate the furniture. I can't believe the weight and base the the Def Tech compact powered sub has. It is just what I needed to go with my 11.2 system. The remote on the Def Tech is more versatile then the one for my very expensive Velodyne. If you need your sub to get lower low's go for the 6000 or 8000 depending on your budget.

Pros:Very small it can fit anywhere, it is set up to go wireless and it has a lot of power. The remote is a big plus , the price and construction is even better.

Cons:The bad part about being so small is that you don't get the furniture moving low's of a big explosion in a movie.

Great sub just dont turn it up

I had high expectations for this sub as I wanted to keep all my speakers manufactured by the same company. The supercube 4000 does sound great and can put out some good sound. Its good down to about 25Hz and sounds great with just about any kind of music from country to reggae. Its precise, and warms up the room with sound. Now, I like to listen to my music loud and this is where it starts to distort some. I had reservations about this sub because it is only 8" and even with the bass radiators was not sure of its ability to put out some loud sound without distorting. I did notice it start to distort which is why I believe they include a remote (which was missing in my box) to turn it up and down as you turn your stereo up. Great speaker, its just not for me.

Pros:Great sound, precise and room filling

Cons:Sub is only 8" with bass radiators, it will distort if you turn up without turning the sub down.

Great Sub, Bangs hard, shakes my Apt and my neighbors hate me.

The reason I gave it a 4 instead of 5 is because of the compatibility of the wireless kit. Other than that the sub bangs and has a quality sound. I listen from the outside of my Apt and the sound resonates, my windows rattle and my neighbors hate me. I bought the wireless kit same brand and it works iffy at best. I have to constantly unplug the sub to regain connectivity. After that, that started not to work. I have to manual repair it becomes annoying. One I do not like also is the red LEDs, Blue is easier on the eyes. P.S and for those who say dumb comments like a 350 watt sub sounds the same must have been drop on the head as a child.

SuperCube 4000 Very Impressive

The SuperCube 4000 is amazing. I use it as a supplement to my Polk tower speakers. The bass and tonality of it is truly remarkable. Size was definitely a consideration in selecting this sub. I needed something small and unobtrusive. I don't have surround sound for my living room TV. So after I added the sub, my wife and I were really impressed. We never realized we were missing so much depth and feel of the audio portion of the movies we watch. It really enhances our viewing experience. I would definitely recommend this sub to anyone in the market for one.

Pros:Small size, large sound (if you want it). It also allows you to custom tailor the lower frequencies to suit your taste.
Multiple types of hookups in the back. You should be able to connect this sub to just about anything you might have.

Cons:It seemed a little pricey at first, but after I hooked it up, we were not disappointed.

Fills the room with clear bass!!

Part of a Definitive Technology home theater set up with ceiling speakers and XTR 50 center in a 14x30 open room. Placed it in a corner across from TV. Impressed with the clarity and fullness of the bass in such a large room. More than sufficient. Replaced a Bose bass module home theater set up....not even close.

Great sub for music..

I am a 2 channel music lover...I've been enjoying music before there was 2 channel...I'm hard to please, my amp has big tubes, my room is acoustically treated and so on.. I've had the belief that a sub had to be big and heavy to reach down to get those gruntin' notes. A couple of subs I've recently tried couldn't do it... Let me tell you this Definitive Tech 4000 is a real musical delight to listen to, fits my system perfectly. I would describe the sound as a "punch" a nice clean punch or kick, no rumble. When a base note hits can hear the strings.. great sound!. Having the ability to set-up the unit from your chair is also a big plus... A little about Churtchfield, The first unit I received had a slight problem, (turns out it was the remote). A new sub was at my house 3 days later... the exchanged was flawless. You cannot go wrong with this outstanding Virginia company..

WOW

I bought 4 PM 1000's, a PC 2000, and a SC 4000 to upgrade from an Onkyo box theater system. I was a little hesitant to spend the money but I am glad I did, there is no comparison this is the best speaker set up I have ever owned. I went with the SC 4000 because of the wireless ready option and because my room is a decent sized room. The wireless kit works great once a found a good spot and being wireless gave me plenty of options. When I first unpackaged the sub woofer I was worried I spent $800 dollars poorly. This is a good example of size not being everything. In fact the small size is a benefit. The bass output amazed me. I never did hear the Pro Sub 1000 but I am definitely glad I went with this one, worth every penny. Before I purchased I contacted both Def Tech and Crutchfield with a few questions I had and the customer service I received was excellent. I am now a Def Tech and Crutchfield enthusiast and would recommend this set up to anyone looking for a great value for what you get.

Pros:Small compact size with a surprising bass out put.
Wireless ready.
The remote comes in handy.
Hidden digital display makes for easy viewing.Even being pushed hard they maintain great quality sound.
Great value (even though I thought the cost was a little much, after setup it was without a doubt worth every penny)
Customer Service from Def Tech and Crutchfield, 10 out of 10.

Couldn't have asked for more

This sub is a replacement for a Velodyne DLS-3500R. The velodyne was a ported 8" sub which also had a remote to tune it in and I was happy with how it performed but it quit working and I needed a replacement so after a lot of research I decided on the Def. Tec. SC 4000. My speakers are Mythos Two's in the front with a Mythos Three center, a couple of Polk RM's for height, Two Polk Dipole surrounds and a couple more Polk RM's for the rear this completes my 9.1 system. The receiver is a Pioneer SC-67. I am Totally in awe of the sound that comes from this little sub it just blew me away After about 2 and 1/2 hrs. of tuning it in it has a great balance between movies and concert Blu-Rays. I don't need the whole house shaking but this sub can shake it. I did tune it down to get that clean bass that is needed for both movies and music and this little cube can provide all that I need. I am totally giddy right now and I plan on playing with this for a couple of weeks till its break in period is over. My room is 18 X 12 and this sub will rock it out. I can not speak for larger rooms. I also like my bass to complement my movies and music not steal the show.

Not worth the price

The sub has an impressive look and the remote volume and crossover adjustments are nice the sub sounds like a $250 sub and it will distort/bottom out when pushed hard. If you want a sub to impress your guest while watching an action movie in your theater room or while listening to bass heavy music then keep shopping. I tested the sub on two different sound systems while playing music from an ipod and then watching a Blue Ray DVD and again with Digital Cable(movies and music channels).

CompactBass

This cube is small but gives enough earthquake in your family room. The dedicated woofer joined the home theatre system from "Energy" front towers, surround sound, and center speakers created a complete set of 7.1. The system is powered by Harman Kardon receiver. Tested sound with "Transformer" movies, it really vibrated the window and any hanging materials such as picture frames, and mirrors. Perfect for home theatre for an average size family room. Give it a 4 star because of the EQ feature, I only interested in low frequency, nothing else.

Pros:The LED on the front of the woofer is neat for adjusting purposes by the remote. Its compact size can easily hide behind a love seat or sofa.

Cons:I'm not too thrill about the predefined EQ feature on woofer. I've done DJ, I like to be able to adjust EQ on my desired. This woofer don't have ouput port for coupling with other woofer.

MONSTROUS

Small in size. HUGE in sound, quality and dimension. This little beast adds the missing piece to my home theatre system. Coupled with Polk RTi A7s, CSiA6, and FXi A6 this monster just bangs out the bass and rounds out the experience. Movies will bring the true theatre experience to your ears and flutter your heart during action sequences. Music will have you running out the house to see if your neighbors are lining up to shut you down. I love it!!